package exception;

public class TryCatchDemo {
    public static void main(String[] args) {
        System.out.println("程序开始了");
        try {
            String line=null;
            System.out.println(line.length());
        }catch (NullPointerException e){
            System.out.println("出现了空指针并且解决了");
        }
        System.out.println("程序结束了");
    }
}
